18689961

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{4591}}^1$

素因数の和:4676

約数の個数: 16

約数和(自身を含む): 26449920

約数和(自身を除く): 7759959

約数列:

[1, 3, 23, 59, 69, 177, 1357, 4071, 4591, 13773, 105593, 270869, 316779, 812607, 6229987, 18689961]

約数ペア:

[(1, 18689961), (3, 6229987), (23, 812607), (59, 316779), (69, 270869), (177, 105593), (1357, 13773), (4071, 4591)]